Oil-burner.



No. 878,874. .PATENTED FEB. 11, 1908. O. S. EVANS.

OIL BURNER.

APPLIG IIIIIIIIIIIIIIIIIIII 7.

' Willi/H! NNNNNN OR BY I *2 ATTO 'EY PATENT OFFICE.

' CLARK S. EVANS, OFOAKLAND, CALIFORNIA.

OIL-BURNER.

Specification of Letters Patent.

Patented Feb. 11, 1908.

Application filed July 24. 1907- Serial No. 385310- To all whom it may concern:

Be it known that I, CLARK S. EVANS, citizen of United States, residing at Oakland, in thecounty of Alameda and State of California, have invented new and useful Im-- rovements in Oil-Burners, of which the folowing is a specification. a

My invention relates to oil burners. Its object is to provide a simple practical oil burner especially designed for use on locomotives or other places where there is a variable draft due either fromstarting or stopping the engine, or from other causes.

It hasother objects, which, together with the advantages claimed therefor, will be more fully apparent hereinafter.

The invention consists of the parts and the construct on and combination of parts as hereinafter more fully described and claimed,

having reference to the accompanying drawings, in which I Figure 1 is a longitudinal section of my burner. Fig. 2 is a section on X -'X, Fig. 1. Fig. 3 is an end view of the burner showing the flame adjustment.

A represents an outer shell-or casing having a tapered interior larger at the rear end and adapted to receive a plug 2; the plug 2 and the inside of the rear end of the casing being ground to have a snug turning fit. Preferably the outer casing is of iron orsteel and the plug 2 of a. different metal, as brass.

, The plug 2 is adapted to project a shortdistance outside the casing A, and is removably held thereto b suitable-means, as the screwcap 3. The ug has a central stem extending through the cap 3, and to which stem, at 4, may be attached an operating handle. Suitably secured to or cast mtegral with the front end of the plug 2 is a pipe 5,'which extends forward concentric with the shell A, and has a flared end 6 terminating fiushwith the forward end of the shell'A and spaced therefrom to form a contracted annular discharge orifice.

The plug 2 has a steam inlet port 7 which is in continuation of the passageway in the pipe '5, and which port is adapted to register with an inlet 8 through the casing, and to which inlet the steam pipe 9 is attached. Outside the port 7 is a recess or depression 10 in the plug which is ada ted to bring the oil pipe 11 into register wit the annular space plug is turned.

As will be seen from Fig. 2, the oil port 10 is narrower than the steam inlet port 7, so

that in turning the plug to turmon the steam oil pipes, the oil and steam are turned on, as

iust described, by a simple operation of the ever handle on 4 to brin the ports 710 into communication wit the respective pipes 9-11. The initial entry of the steam into the burner heats up the pipe 5 and blows out the Water of condensation. The oil then entering is in condition to be readily volatilized, and the mixture of the steam and oil takes place outside the burner and in the furnace the resulting flame being coneshaped, as will be manifest from the flared shape of the pipe 6 and the contracted nozzle end of the casi A. Under some conditions a perfect cone-s aped flame may not be desirable or necessary, as where the top of the furnace, or the bottom of the furnace, or one side or other of the furnace, may require more or less heat. I- therefore provide an adjustable device by which the size and shape of the oil discharge orifice can be regulated.

As here shown, 12 represents a ring fitting the end of the casing and having a-depending semi-annular fla e 13 pro'ectln over onehalf of the oil disc arge orifice. this segmental flange 13 could be more or less than half a circle according to the shape and size of the flame desired. The ring 12 is connected by two or more stra s 14 with'the, ring 15, WhlGh is adapted to s 'p back over the burner casing, and is removably held .thereto by suitable means, as the locki cam 16. Since both rings 1215 are freely turnable about the casing, it is manifest that anifestly,

the flange 13 can be turned to shut off the out-flow of oil from any art of the burner and restrict the flame in t e furnace accord: ingly. A One of the principal features of this invention is its simplicity, there bei only three parts; to wit, the shell, the p ug with its steam pipe 5, and the retaining cap 3.

By having the plu and steam pi e mounted for oscillation,-an d the plug beiiig ported as described, this plug acts as a controlli valve for both, the steam and the oil, an therefore the burner is a single valve burner.

The length of the plug is sufficient to allow for take-up by the cap 3. N o stufling boxes are necessary, either, 1n this burner.

It is not necessary to have any extra fittings'whatsoever to blow out or clean out this burner, as itwill clean itself, by simply turnin the oil port in the valve into hne with t e steam inlet pipe; and in so doing the steam enters the oil com artment or shell of the burner and blows al sediment or refuse out the nozzle of the burner.

This burner will not smoke, with the proper draft, and it can be used as a gravity or a force feed burner with perfect satisfaction;

it is an oil saver, and can be used'on any boiler usin oil as a fuel. I

It is a 'rect-acting, single-valve burner, oil and steam being admitted through the same valve without coming in contact with each other until reachin the furnace.

Having thus describe my invention, what- I claim and desire to secure by LettersPatent is 1.. In an oil burner, the combination of a casing, a unitary plug turnable in the casing, said plug having an oil inlet port and a sep 'arate steam inlet port, said plug having a longitudinally extending steam assage and turnable in the bore, said plug having sep.

'- in the bore, a cap for retaining the plug in said casing having a longitudinal y extending oil passage concentric with said steam passage, and said plu being turnable to regu ate the admission of 0th the steam and oil to the burner.

2. In an oil'burner, the combination of a shell open at both ends, said shell having a conical bore, a single plug seating in and arate oil and steam ports registerable with corresponding ports in the casing, said plug having a longitudinally" extending steam passage and said shell having a longitudinally extending oil passage concentric with said steam passage, saidv plug being turnable to regulate the admission of both the steam and oil.

3. In an oil burner, the combination of a casing having a conical bore, a plug turnable position, said plug having separate steam and oil ports registerable with corresponding orts in'the casing, said lughaving a forward hollow extension outwardly towar n the caslng and concentric therewith and in continuation with said steam port, said extension having a flared end ternnnating approximate to the front end of the casing and 006 erating therewith to form an annular oil out et.

4. In-an oil burner, the combination of a casing having a conical bore, a plug turnablein the bore, a cap for retaining the plug in position, said plug having separate steam and oil ports registerable with corresponding burner to regulate the oil discharge. 5. In an oil burner, the combination ofa casing having a conical bore, a plug turnable in the bore, a cap for retaining the plug in position, said plug having separate steam and oil ports registerable wit ports, in the casing, said .plllug having a "forward hollow extension wit 'n the casing and concentric therewith and in continuation with said steam port, the front of the extension being flared outwardly and terminating corresponding proximate to the front end-of the casing said steam port in the plug arranged upon turning the plu to admit steam into the burner prior to t e entry of the oil therein.

6; The combination of a casin member having a conical bore, a plug turna le in said bore said plug having a longitudinally extendin steam passage and said casing having a ongitud na lly extending oil passage concentric with the steam passage, and sa1d plug having two separate inlets registerable with two-corresponding separate and dis-. I

tinct fluid inlets in the casin the forward end of the steam (passage in t e plug flaring and terminating proximate to the front end of the casing, one of sa1d inlets adapted u on turning the plu to open prior to and to c ose subsequent to e openmg and closing of the other inlet.

11 testimony whereof I have hereunto set 'my hand in presence of two subscribing witnesses. c I V c i CLARK S. EVANS.

Witnesses:

E. F; AYLWARD, JAS. P. FITZGERALD... 

